knox and her ex-boyfriend were cleared of murder charges in 2011. she was set free after spending four years in prison. no objection now lives in seattle and is working on her memoir. she was reportedly paid $4 million to write a book about her experiences. boris berezovsky lived in london because he was a loud critic of russia's leadership. he's been found dead, but people are speculating that it might not be from natural causes. >> reporter: people who knew boris berezovsky in the 1990s describe him as ambitious, not charmed, pested and lobbied his way into the kremlin. becoming an influential political player. and as the president's health declined, berezovsky was said to have played a role in helping to install putin as his successor. this is berezovsky speaking in 2000, just days after putin took over. >> i think that putin will continue the way which the president established in russia. >> reporter: he was wrong. putin quickly pushed all the oligarchs out of russia. he was investigated for corporate crimes, which he denied, and he fled russia,